Horrible DC Kw Rate

[Quranp]

Have you tried to let it charge above 20%? When you are below a certain threshold (and also above) the charging curve will be degraded. If you plug in at 13-15% and let it go, it should ramp up near 20% to a faster charge. If it is not, and you've done this, then you've got a problem.

Yes I have tried below 20% several times, and out of curiosity, I tried at 43% as well as 57%. But always the same charge rate 30-31.

Sponsored

 

[Quranp]

So an update, I took MME to Ford 7/1 and they are still valiantly trying to fix the fast charging issue. The tech has replaced, the charge port, battery pack and OBCC. Which to my surprise didn't fix the issue. He reached out to engineering who had him replaced the SOBDM which cleared a P0DA0 code but still no level 3 charging. The only thing left they say is the "junction box".
Now my question and request for advice. If this doesn't do the trick what are my options and what do you all suggest?

 

[B177y]

So an update, I took MME to Ford 7/1 and they are still valiantly trying to fix the fast charging issue. The tech has replaced, the charge port, battery pack and OBCC. Which to my surprise didn't fix the issue. He reached out to engineering who had him replaced the SOBDM which cleared a P0DA0 code but still no level 3 charging. The only thing left they say is the "junction box".
Now my question and request for advice. If this doesn't do the trick what are my options and what do you all suggest?

I looked at your original post and do not see any mention of whether you purchased your '21 Select new or if it's used. If it is new, then you may have a lemon law or buyback case. If it is used, and you are out of warranty, I think you just need to keep doing what you're doing and pressure Ford into fixing the problem.

 

[alexgorod]

If it is used, and you are out of warranty

Shouldn't the battery/powertrain warranty cover it?

 

[B177y]

Shouldn't the battery/powertrain warranty cover it?

Didn't think about that, but I agree, that probably should be covered by the 100,000 mile battery and charging warranty. Unfortunately that means the OP just needs to keep pressing on. The lemon laws are usually only applicable for 12-18 months, but vary state to state.

Of course that comes with the disclaimer that I'm not a lawyer, nor do I play one in TV...

 

[kltye]

So an update, I took MME to Ford 7/1 and they are still valiantly trying to fix the fast charging issue. The tech has replaced, the charge port, battery pack and OBCC. Which to my surprise didn't fix the issue. He reached out to engineering who had him replaced the SOBDM which cleared a P0DA0 code but still no level 3 charging. The only thing left they say is the "junction box".
Now my question and request for advice. If this doesn't do the trick what are my options and what do you all suggest?

I don't know what all Ford has done to try to troubleshoot in terms of diagnostics, but maybe we need to go back to basics? Can you hook up an OBD reader and see what the battery pack temperature is and what the car sees the charger advertises its max charging speed as (in amps)? Another thing to check is if the car is trying to cool the pack; this can be seen by the front grill opening and pumps running.

The 30+kW speed sounds like a failsafe mode of some sort. Also, I don't think the HVBJB would be limiting your charging speeds; it doesn't really have any sophisticated sensors, and if it is indeed failing, it'd throw up a "Stop safely now" or "Service vehicle soon" error on the dash.

 

[Quranp]

Apologies for the missing Info, I bought it used from Ford with 11k miles on the dash, the current work and troubleshooting falls under warranty. It's still at Ford so not able to OBD at the moment. As for a cooling issue, I would imagine it would start out at a class 3 rate then drop to 30 upon failure of cooling no, but that is a good point. I have not paid attention to the front louvers to be honest when I attempted to fast charge. I would imagine that was considered by the tech and engineers but, I will mention it, a very good point.

 

[Space_Pony]

I chalked it up to the recent hack that has Ford in disarray, so I didn't bother to check online. But I will, I have only used maybe 7 of my free 250, so disconcerting to say the least.

Are you a second owner? If so, I didn't think you got free EA charging on used cars.

 

[Quranp]

You do, or I did. I received 250Kw with EA network via Ford when I set up the car and my account via the app.

 

[Quranp]

Update, Ford thought they had the problem solved considering they had replaced everything regarding the charging system. To include the battery pack. I picked the vehicle up on Friday the 27th at 77%. I proceeded to drive it down to 4% and went to an EA 360Kw. To my disappointment I peaked at 42 for a second or 2 and then it promptly drop back down to 32 KW. Needless to say I drove right back to the same dealership and drop the keys in the Dropbox. The following morning I sent my service advisor a text message with pictures showing the issue is still the same. My biggest concern at this point is they don't seem to know what the issue is or how to fix it.

If I recall someone asked or mentioned about the cooling louvers during fast charging and yes they did open.

 

[hybrid2bev]

Update, Ford thought they had the problem solved considering they had replaced everything regarding the charging system. To include the battery pack. I picked the vehicle up on Friday the 27th at 77%. I proceeded to drive it down to 4% and went to an EA 360Kw. To my disappointment I peaked at 42 for a second or 2 and then it promptly drop back down to 32 KW. Needless to say I drove right back to the same dealership and drop the keys in the Dropbox. The following morning I sent my service advisor a text message with pictures showing the issue is still the same. My biggest concern at this point is they don't seem to know what the issue is or how to fix it.

If I recall someone asked or mentioned about the cooling louvers during fast charging and yes they did open.

Just curious if you tried more than one dispenser or more than one DCFC location?

Slow DCFC speeds like that are common at EA if the cable cooling is broken.

 

[RickMachE]

When my HVBJB failed, it threw P0ADE. From that point on, the max DCFC speed I got was 47kW, most of the time 41 or so. My understanding, and @Mach-Lee can clarify, is that when it sees that code thrown, it limits the fast charging speed to prevent complete failure.

Therefore, if somewhere you have a code that has tripped this type of safety, and they don't reset it, you won't be able to fast charge above those speeds until they do, no matter what they replace.

May not help, figured I would throw it out there.

 

[Quranp]

Yes, there was a P0AD0 code, when the tech replaced the can't remember the name but its the interface between the Battery and the car, the code cleared, giving them the impression they fixed the issue.
And yes I have tried different charging stations. I've even watched a lightning or MME get high 150's and 180's and then make a point to use that exact same charging station but I'm still getting the same 32

 

[RickMachE]

Yes, there was a P0AD0 code, when the tech replaced the can't remember the name but its the interface between the Battery and the car, the code cleared, giving them the impression they fixed the issue.
And yes I have tried different charging stations. I've even watched a lightning or MME get high 150's and 180's and then make a point to use that exact same charging station but I'm still getting the same 32

I would venture to bet that something isn't reset.

 

[hybrid2bev]

I would venture to bet that something isn't reset.

Sounds like maybe the dealer skipped the last step of the HVBJB replacement procedure??

6. If DTCs P0ADA, P0ADE, P0AA1, and/or P0AA4 remain present, download and run the "BECM - Reset Diagnostic Trouble Code (DTC) Occurrence Counter" application in FDRS.

Sponsored